18CASSETTE INDOOR UNIT INSTALLATIONSelect install location of the indoor unit1. Obstructions should be removed from the indoor unit’s intakeor outlet vents so the air can flow throughout the room.2. Make sure the installation is in accordance with therequirements of the required clearances on the schematicdiagram.3. Select a location that can withstand 4 times the weight ofthe indoor unit and would not increase the operating noise.4. Ensure the unit is level.5. Select a location where condensated coagulated water candrain easy connect easy with the outdoor unit.6. Ensure there is enough space for care and maintenance.Ensure the height between the indoor unit and ground is 3ft. (1mt) or 16ft (5mt).7. When installing the steeve bolt, check if the install place canwithstand a weight 4 times of the unit’s. If not, reinforcebefore installation. Refer to the install cardboard todetermine where the location should be reinforced.IMPORTANT: To guarantee the good performance, the unit mustbe installed by professional personnel according to this instruction.25 3/5 in (650 mm)22 4/9 in (570 mm)15 3/4 in (400 mm))mm075(ni9/422)mm406(ni9/732)mm056(ni5/352Install dimension of mode37 2/5 in (950 mm)37 2/5 in (950 mm)35 in(8 90 mm)35 in(890 mm)33 in(8 40 mm)33 in(840 mm)30 5/7 in (780 mm)26 7/9 in (680 mm)Fig. 23 --- Dimension of ceiling opening and location of thehoisting screw (M10)IMPORTANT: The drilling of holes in the ceiling must beperformed by professional personnel.20.59in/52322.44in/57025.47in/64721.45in/54522.44in/57025.47in/647Fig. 24 --- Drilling Holesin/Fig. 25 --- Drilling HolesFig. 26 --- Drilling HolesNOTE: Installation is possible with a ceiling dimension of 23.62in. (600m) (marked with *). However to achieve a ceiling--paneloverlapping dimension of 0.59in (15mm), the spacing between theceiling and the unit should be 0.79 in. (20mm) or less. If thespacing between the ceiling and the unit is over 0.79 in. (20mm),attach sealing material in the part or recover the ceiling.INDOOR UNIT MAIN BODY INSTALLATIONInstallation is possible with a ceiling dimension of 23.62 in.(600mm) (marked with *). However, to achieve a ceiling--paneloverlapping dimension of 0.59 in. (15 mm), the spacing betweenthe ceiling and the unit should be 0.79 in. (20mm or less). If thespacing between ceiling and the unit is over 0.79 in. (20mm),attach sealing material in the part or recover the ceiling.1. Prepare the ceiling opening needed for installation whereapplicable (for existing ceilings).a. Create the ceiling opening required for installation. Fromthe side of the opening to the casing outlet, implement therefrigerant and drain piping and wiring for the remotecontroller (unnecessary for wireless type). Refer to eachpiping or wiring section.b. After creating an opening in the ceiling, it may be necessaryto reinforce the ceiling beams to keep the ceiling level andto prevent it from vibrating. Consult the builder for details.2. Install the installation hooks. Use either a M8 or M10 sizebolt.a. Use expansible hooks, sunken anchors or other fieldsupplied parts to reinforce the ceiling in order to bear theweight of the unit.b. Adjust the clearance from the ceiling before proceedingfurther. Installation example see Fig. 27.